Interaction feature of caterpillar tracks with soil under significant axial displacements of pressure center

Abstract

Abstract A calculation method is proposed for assessing the values of normal pressures and transverse reactions under the track of a transport-technological or transport vehicle. The technique is based on a deterministic approach to modeling the interaction of caterpillar tracks with soil. The geometric, power and other characteristics of the chassis and the main characteristics of the soil are taken into account. When modeling normal soil deformation, the Bernstein-Letoshnev relationship was used. Calculated dependencies are proposed, allowing to estimate the value of normal reactions on the supporting surface of the machine and the value of the coefficient of the moment of resistance to turning the chassis. An example of calculations for a tracked chassis weighing eight tons when predicting the track depth is given. The advantage of deterministic methods over stochastic ones in solving problems related to the operational assessment of changes made to the design of the undercarriage of a tracked vehicle has been substantiated.